SG146469A1 - Measurement circuit with improved accuracy - Google Patents
Measurement circuit with improved accuracyInfo
- Publication number
- SG146469A1 SG146469A1 SG200701979-7A SG2007019797A SG146469A1 SG 146469 A1 SG146469 A1 SG 146469A1 SG 2007019797 A SG2007019797 A SG 2007019797A SG 146469 A1 SG146469 A1 SG 146469A1
- Authority
- SG
- Singapore
- Prior art keywords
- differential amplifier
- measurement circuit
- improved accuracy
- pedestal
- amplifier
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/3181—Functional testing
- G01R31/319—Tester hardware, i.e. output processing circuits
- G01R31/31917—Stimuli generation or application of test patterns to the device under test [DUT]
- G01R31/31924—Voltage or current aspects, e.g. driver, receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/3181—Functional testing
- G01R31/319—Tester hardware, i.e. output processing circuits
- G01R31/3193—Tester hardware, i.e. output processing circuits with comparison between actual response and known fault free response
Abstract
MEASUREMENT CIRCUIT WITH IMPROVED ACCURACY A measurement circuit for measuring input voltages in an automatic test system includes a pedestal source, a differential amplifier, and a feedback amplifier. The differential amplifier measures a 'residue,' i.e., a difference between an input signal and a pedestal signal from the pedestal source, which is programmed to equal an expected input voltage. The feedback amplifier boosts the residue before it is presented to the differential amplifier, and thus allows the differential amplifier to be operated at lower gain than is typically used in conventional topologies. Consequently, the effect of the errors in the differential amplifier are reduced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/425,329 US6914425B2 (en) | 2003-04-29 | 2003-04-29 | Measurement circuit with improved accuracy |
Publications (1)
Publication Number | Publication Date |
---|---|
SG146469A1 true SG146469A1 (en) | 2008-10-30 |
Family
ID=33309676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200701979-7A SG146469A1 (en) | 2003-04-29 | 2004-04-27 | Measurement circuit with improved accuracy |
Country Status (9)
Country | Link |
---|---|
US (2) | US6914425B2 (en) |
EP (1) | EP1618397B1 (en) |
JP (1) | JP4625453B2 (en) |
CN (1) | CN100449322C (en) |
DE (1) | DE602004002209T2 (en) |
MY (1) | MY136596A (en) |
SG (1) | SG146469A1 (en) |
TW (1) | TWI333552B (en) |
WO (1) | WO2004097436A2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6914425B2 (en) * | 2003-04-29 | 2005-07-05 | Teradyne, Inc. | Measurement circuit with improved accuracy |
CN101567729B (en) * | 2008-04-21 | 2013-07-17 | 北京六合万通微电子技术股份有限公司 | Device for detecting strength of differential signal |
FR2982674B1 (en) * | 2011-11-10 | 2015-01-16 | Renault Sas | METHOD AND SYSTEM FOR MEASURING ELECTRICAL CURRENT |
US9217780B2 (en) * | 2014-01-07 | 2015-12-22 | Qualcomm Incorporated | Compensation technique for amplifiers in a current sensing circuit for a battery |
RU2646377C1 (en) * | 2017-04-11 | 2018-03-02 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет "(ЮЗГУ) | Analogue integrator |
CN110677133B (en) * | 2019-09-11 | 2023-03-28 | 北京爱尔微科技有限公司 | Integral type self-adaptive baseline restoration circuit |
US11156692B2 (en) | 2020-02-19 | 2021-10-26 | Teradyne, Inc. | Calibrating differential measurement circuitry |
KR102338892B1 (en) * | 2020-03-02 | 2021-12-13 | 울산과학기술원 | Bio signal processing apparatus |
KR102424344B1 (en) * | 2020-09-04 | 2022-07-22 | 울산과학기술원 | Eeg signal amplifification apparatus for boosting impedance |
CN114487615B (en) * | 2022-04-06 | 2022-08-30 | 基合半导体(宁波)有限公司 | Capacitance measuring circuit and capacitance measuring method |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60127572U (en) * | 1984-02-06 | 1985-08-27 | 株式会社アドバンテスト | Voltage applied current measuring device |
JPS61170137A (en) * | 1985-01-23 | 1986-07-31 | Nippon Atom Ind Group Co Ltd | Analog-digital converter |
GB2263784B (en) * | 1990-01-09 | 1994-02-16 | Richard George Vivian Doble | High frequency measuring circuit |
JP2542311Y2 (en) * | 1990-07-13 | 1997-07-23 | 日置電機株式会社 | Voltage detector |
JPH04144423A (en) * | 1990-10-05 | 1992-05-18 | Jeol Ltd | A/d converter |
NL9200974A (en) * | 1992-06-03 | 1994-01-03 | Stichting Tech Wetenschapp | INSTRUMENTATION AMPLIFIER. |
US5424663A (en) * | 1993-04-22 | 1995-06-13 | North American Philips Corporation | Integrated high voltage differential sensor using the inverse gain of high voltage transistors |
EP0631144A1 (en) * | 1993-06-24 | 1994-12-28 | Koninklijke Philips Electronics N.V. | High voltage differential sensor having a capacitive attenuator |
US5514972A (en) * | 1994-10-20 | 1996-05-07 | International Business Machines Corporation | Voltage comparison circuit |
DE69620382T2 (en) * | 1995-07-21 | 2002-11-07 | Koninkl Philips Electronics Nv | VOLTAGE REFERENCE ARRANGEMENT, VOLTAMETER, BATTERY VOLTAGE DETECTION ARRANGEMENT AND A WIRELESS TELECOMMUNICATION DEVICE |
JP3888592B2 (en) * | 1996-04-22 | 2007-03-07 | ビービーイー サウンド インク. | Low input signal bandwidth compressor / amplifier control circuit with state variable preamplifier |
WO1998000910A1 (en) * | 1996-06-28 | 1998-01-08 | Philips Electronics N.V. | Circuit arrangement comprising a feedback loop |
JP3186665B2 (en) * | 1997-09-19 | 2001-07-11 | 三菱電機株式会社 | Phase estimation circuit and demodulation circuit |
JP3863262B2 (en) * | 1997-09-30 | 2006-12-27 | 松下電器産業株式会社 | Battery voltage measuring device |
US6914425B2 (en) * | 2003-04-29 | 2005-07-05 | Teradyne, Inc. | Measurement circuit with improved accuracy |
-
2003
- 2003-04-29 US US10/425,329 patent/US6914425B2/en not_active Expired - Lifetime
-
2004
- 2004-04-26 TW TW093111576A patent/TWI333552B/en active
- 2004-04-27 DE DE602004002209T patent/DE602004002209T2/en not_active Expired - Fee Related
- 2004-04-27 JP JP2006513400A patent/JP4625453B2/en active Active
- 2004-04-27 WO PCT/US2004/013109 patent/WO2004097436A2/en active IP Right Grant
- 2004-04-27 EP EP04750816A patent/EP1618397B1/en active Active
- 2004-04-27 MY MYPI20041546A patent/MY136596A/en unknown
- 2004-04-27 SG SG200701979-7A patent/SG146469A1/en unknown
- 2004-04-27 CN CNB2004800006089A patent/CN100449322C/en active Active
-
2005
- 2005-06-15 US US11/153,104 patent/US7064535B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN100449322C (en) | 2009-01-07 |
EP1618397A2 (en) | 2006-01-25 |
WO2004097436A2 (en) | 2004-11-11 |
DE602004002209T2 (en) | 2007-07-26 |
DE602004002209D1 (en) | 2006-10-12 |
WO2004097436A3 (en) | 2004-12-29 |
EP1618397B1 (en) | 2006-08-30 |
CN1697979A (en) | 2005-11-16 |
TW200506400A (en) | 2005-02-16 |
TWI333552B (en) | 2010-11-21 |
JP4625453B2 (en) | 2011-02-02 |
JP2006525513A (en) | 2006-11-09 |
US6914425B2 (en) | 2005-07-05 |
US20040217809A1 (en) | 2004-11-04 |
US20050231189A1 (en) | 2005-10-20 |
MY136596A (en) | 2008-10-31 |
US7064535B2 (en) | 2006-06-20 |
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